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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "Tag.hxx"
#include "TagPool.hxx"
#include "TagString.hxx"
#include "TagBuilder.hxx"
#include "util/ASCII.hxx"
#include <assert.h>
#include <string.h>
TagType
tag_name_parse(const char *name)
{
assert(name != nullptr);
for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
assert(tag_item_names[i] != nullptr);
if (strcmp(name, tag_item_names[i]) == 0)
return (TagType)i;
}
return TAG_NUM_OF_ITEM_TYPES;
}
TagType
tag_name_parse_i(const char *name)
{
assert(name != nullptr);
for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
assert(tag_item_names[i] != nullptr);
if (StringEqualsCaseASCII(name, tag_item_names[i]))
return (TagType)i;
}
return TAG_NUM_OF_ITEM_TYPES;
}
void
Tag::Clear()
{
duration = SignedSongTime::Negative();
has_playlist = false;
tag_pool_lock.lock();
for (unsigned i = 0; i < num_items; ++i)
tag_pool_put_item(items[i]);
tag_pool_lock.unlock();
delete[] items;
items = nullptr;
num_items = 0;
}
Tag::Tag(const Tag &other)
:duration(other.duration), has_playlist(other.has_playlist),
num_items(other.num_items),
items(nullptr)
{
if (num_items > 0) {
items = new TagItem *[num_items];
tag_pool_lock.lock();
for (unsigned i = 0; i < num_items; i++)
items[i] = tag_pool_dup_item(other.items[i]);
tag_pool_lock.unlock();
}
}
Tag *
Tag::Merge(const Tag &base, const Tag &add)
{
TagBuilder builder(add);
builder.Complement(base);
return builder.CommitNew();
}
Tag *
Tag::MergeReplace(Tag *base, Tag *add)
{
if (add == nullptr)
return base;
if (base == nullptr)
return add;
Tag *tag = Merge(*base, *add);
delete base;
delete add;
return tag;
}
const char *
Tag::GetValue(TagType type) const
{
assert(type < TAG_NUM_OF_ITEM_TYPES);
for (const auto &item : *this)
if (item.type == type)
return item.value;
return nullptr;
}
bool
Tag::HasType(TagType type) const
{
return GetValue(type) != nullptr;
}
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